Help to understand it.

1. The number of entrees purchased in a single order at a Noodles & Company restaurant has had a historical average of 1.5 entrees per order. On a particular Saturday afternoon, a random sample of 42 Noodles orders had a mean number of entrees equal to 1.85 with a standard deviation equal to 0.73. At the 1 percent level of significance, does this sample show that the average number of entrees per order was greater than expected?

(b-1)Calculate thetstatistic.(Round your answer to 2 decimal places.)

tcalc

(b-2)Find thep-value.(Round your answer to 4 decimal places.)

p-value

4-A cognitive retraining clinic assists outpatient victims of head injury, anoxia, or other conditions that result in cognitive impairment. Each incoming patient is evaluated to establish an appropriate treatment program and estimated length of stay. To see if the evaluation teams are consistent, 12 randomly chosen patients are separately evaluated by two expert teams (AandB) as shown.

Estimated Length of Stay in Weeks
Patient
Team	1	2	3	4	5	6	7	8	9	10	11	12
A	24	24	52	30	40	30	18	30	18	40	24	12
B	24	20	52	36	36	24	36	16	52	24	24	16

(b)Specify the decision rule atthe .10 level of significance.(Round your answers to 3 decimal places. Negative values should be indicated by a minus sign.)

Reject the null hypothesis if the p-value is

less than

.10 or if tcalc <

or tcalc >

.

(c)Find the test statistict_calc.(Round your answer to 4 decimal places. A negative value should be indicated by a minus sign.)

tcalc

(d)Find thep-value.(Round your answer to 4 decimal places.A negative value should be indicated by a minus sign.)

p-value

1. In a bumper test, three types of autos were deliberately crashed into a barrier at 5 mph, and the resulting damage (in dollars) was estimated. Five test vehicles of each type were crashed, with the results shown below.Research question:Are the mean crash damages the same for these three vehicles?

Crash Damage ($)
Goliath	Varmint	Weasel
1,600	1,290	1,090
760	1,400	2,100
880	1,390	1,830
1,950	1,850	1,250
1,220	950	1,920

Fill in the missing data.(Round yourp-value to 4 decimal places, mean values to 1 decimal place, and other answers to 2 decimal places.)

Group	Mean	n	Standard Deviation	Variance
Goliath
Varmint
Weasel
Total

One-Factor ANOVA
Source	SS	df	MS	F	p-value
Treatment
Error
Total

Calculate the value ofH_calc.(Round your answer to 2 decimal places.)

Hcalc